Hi 

Regarding Electric water Heater, is there any equation to calculate the EWH energy factor to compare the result with the equation of ASHRAE 90.1-2007...EFmin = 0.97* − (0.00132 × V...

We have an office building project with garages going 4 storeys underground. The building foundation slab is about 16m deep. Should this slab still be considered for 'slab-on-grade' (even if it...

Hi,

I am doing a LEED 2009 project. The project is in California and complied with Title 24 2016. I am trying to use title 24 to comply the LEED EAc 1. I have two questions.

1. LEED...

I'm trying to wrap my head around modeling an adiabatic humidification system for our project that I can't directly model within TRACE that I know of.  I'm planning to model the humidification...

Hi,

we are working in a project pursuing LEED certification (NC v2009).

The owner wants to achieve the Platinum Level and that implies an area of PVs larger than the area available...

We are working on a Hotel project in Chicago, Illinois (USA) with LEED NC v2009.  Is my understanding correct in that for credit EAp2 you can follow LEED v.4, and for EAc1 you can follow LEED v....

USGBC Addenda 100001062 updated the exterior lighting table for LEED v3 projects to the 90.1-2010 allowances. The addenda just says it updates credit SSc8 though. Should the new allowances be...

I am modelling a project receiving chilled water from the district cooling plant with an ice storage and wondering how to account for energy use shifting in the building model if I use Option 2...

I have a commercial kitchen facility that has a number of plumbing fixtures used for pot filling, etc, which are considered process water (and is reflected as such in the Water Use Reduction...

Hi,

I am modeling Airport Traffic Control Tower project for LEED 2009 and I have question regarding economizer requirement. We have data center rooms which are served by CRAC units. We...